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(No Model.)

G. W. DAIMLER. Gas Motor Engine.

Paten ted' Sept. 14, I880,

InvanZ-on Y/iizve 086d:

v dltiyj UNITED STATES PATENT OFFIcE.

GOTILIEB W. DAIMLER, OF DEUTZ-ON THE-RHINE, GERMAN EMPIRE.

GAS-MOTOR ENGINE.

SPECIFICATION forming part of Letters Patent No. 232,243, datedSeptember 14, 1880.

Application filed July 13, 1880. (No model.) Patented in England January26, 1880.

To all whom it may concern Be it known that I, GoTrLIEB WILHELM DAIMLER,of the Gas Motoren Fabrik Deutz, at Deutzon-the-Rhine, in the GermanEmpire, have invented a new and useful Improvement in Gas'Motor Engines,for which I have obtained a patent in Great Britain, No. 343, bearingdate January 26, 1880, and of which the following is a specification.

This invention relates to motor -engiues wherein the piston of theengine-cylinder is actuated by the gaseous pressure resultingfrom thecombustion of a mixture of air and combustible gas or vapor introducedinto the cylinder.

The introduction of such combustible mixture was heretofore mostlyeffected by means of a slide, which in engines of large dimensions thusbecame inconveniently large. According to the present invention thisinconvenience is obviated by the use of an arrange ment whereby thewhole or the greater part of the combustible charge is admitted into theworking-cylinder through aseparate valve, so that the slide can be madeof smaller dimensions. For this purpose an arrangement is employed whichis shown on the accompanying drawings, in which- Figure 1 shows an endview of the enginecylinder with valve-gear. Fig. 2 shows a verticalsection of the rear end of the cylinder and ports; and Figs. 3 and 4show sectional plans taken, respectively, on lines X X and Y Y, Fig. 1.

A is the working-cylinder; B, the inlet-- passage for the combustiblecharge. The combustible or vapor entering through the passage 0, Figs. 1and 3, passes thence through openingp, Fig. 3, into cavity 0 in theslide 07, and thence into the passage f through opening 0. Frompassage)" the gas issues through a number of small openings at 1 intothe passage or mixing-chamber h, so as to mix intimately with the airentering through the open lower end ofsuch chamber. The mixture of gasand air passes partly through the channel 71/, opening 8, slide-cavityr, and ignitingport it into the cylinder port B, while the greater partpasses through the channel k to the under side of the valve '5, situatedin port B, so as on the opening thereof to issue into the cylinder. Theopening of the valve for this purpose is effected at the proper timefrom any convenient moving part of the engine, such as by a bell-cranklever, 7t 1, actuated by the motion of the slide cl, as shown, theclosing of the valve being effected by a spring, q.

The ignition of the charge is effected by a small charge of burning gasin the cavity m of the slide, ignited by a stationary gasjet in theusual manner, and brought by the motion of the slide in front of theigniting-port n. The admission of the combustible charge is effectedwhen the slide is in the position shown in Figs. 3 and 4, when thecavity 0 of the slide establishes the communication between openings 0and 12, while the cavity r establishes the communication between theopenings .9 and n, the valve '1 being at the same time raised from itsseat by means of the lever 7c 1-, acted upon by the slide (1, as shownat Fig. 1.

In some cases the combustible gas may be made to pass directly from 0into passage f without passing through the slide.

Having thus described the nature of my invention and the best means Iknow of putting it in practice, I claim In gas-motor engines, theherein-described double connection of the inlet-port B of the cylinderwith the mixing-chamber h for gas and air, such double connection beingeffected by the aperture 8, the slide-cavityr, the igniting-port n, andthe valve *6, the whole being arranged substantially as shown anddescribed, whereby the combustible charge is made to enter the cylinderboth through the ignitingport and through the valve 6, as set forth.

In testimony whereof I have hereunto set my hand and seal, in thepresence of two subscribing witnesses, this 26th day ofJune, A. D. 1880.

GOTTLIEB WILIIELM DAIMLER. [n s] Witnesses GUSTAV KLEINJUNG, EDUARDKIRSCHSIEPER.

